ANALISIS KEBERLANJUTAN USAHATANI SAYURAN KANGKUNG DI KECAMATAN PAAL MERAH KOTA JAMBI. JPB [Internet]. 2020 Dec. 31 [cited 2026 Oct. 3];3(2):40-6. Available from: https://online-journal.unja.ac.id/JPB/article/view/8906